To address the urgent need for new antifungal agents, a collection of novel pyrazole carboxamide derivatives incorporating a benzimidazole group were innovatively designed, synthesized, and evaluated for their efficacy against fungal pathogens. The bioassay results revealed that the EC values for the compounds A7 (3-(difluoromethyl)-1-methyl-N-(1-propyl-1H-benzo[d]imidazol-2-yl)-1H-pyrazole-4-carboxamide) and B11 (N-(1-(4-chlorobenzyl)-1H-benzo[d]imidazol-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide) against B. cinerea were notably low to 0.
View Article and Find Full Text PDFThree new prenylated C-C compounds (), together with two known prenylated C-C compounds () and one known C-C derivative (), were isolated from the roots of A. C. Smith.
View Article and Find Full Text PDFThree new cadinane sesquiterpenes (-) and three known sesquiterpenes were isolated from the stems and branches of A. C. Smith.
View Article and Find Full Text PDFJ Asian Nat Prod Res
April 2024
Six previously undescribed prenylated C-C derivatives (-) were isolated from the root of A. C. Smith.
View Article and Find Full Text PDFFifteen unreported prenylated C-C derivatives (1-15) were isolated from the stems and branches of Illicium ternstroemioides A. C. Smith, including one bis-prenylated C-C derivative (1), three prenylated C-C derivative-shikimic acid ester hybrids (2-4) and 11 prenylated C-C monomers (5-15).
View Article and Find Full Text PDFEight undescribed β-bergamotene-type sesquiterpene oliganins A-H (1-8) and one known α-bergamotene-type sesquiterpene (9) were isolated from the leaves and twigs of Illicium oligandrum Merr. & Chun. The structures of compounds 1-8 were elucidated by extensive spectroscopic data, and the absolute configurations were determined by using a modified Mosher's method and electronic circular dichroism calculations.
View Article and Find Full Text PDFChemical investigation of an alcohol extract from the twigs and leaves of Illicium henryi Diels resulted in the isolation of two new acorane-related seco-sesquiterpenes (1 and 3), two new acorane-related seco-norsesquiterpenes (2 and 4), one new 2-epi-cedrane sesquiterpene (5), eight new acorane-type sesquiterpenes (6-13), and a known major constituent of acorenone B (14). Their structures were established by interpreting extensive spectroscopic data, including HRESIMS, NMR (H and C NMR, H-H COSY, HSQC, and HMBC), and NOE difference spectra analysis. The absolute configurations of 1, 2, 4-7, 9, 10, and 14 were determined by X-ray crystallography, while chemical transformation methods were performed with compound 14 as the starting material to elegantly solve the absolute configuration issue of compounds 8 and 11-13.
View Article and Find Full Text PDFThe inferior vena cava (IVC) may develop abnormally because of its complex embryogenesis. An understanding of congenital variants such as duplication of the IVC is essential for clinical interventions, particularly those performed by surgeons and radiologists. We herein describe five patients who were diagnosed with duplication of the IVC by computed tomography or angiography and summarize their imaging and clinical features.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
November 2021
Three seco-prezizaane-type sesquiterpene lactones, one phenylpropanoid, and two lignans were isolated from the 95% ethanol extract of stems and branches of Illicium ternstroemioides with silica gel column chromatography, ODS column chromatography, and preparative HPLC. Based on the spectral data, they were identified as burmanicumolide D(1), veranisatin A(2), veranisatin B(3), dihydroconiferylalcohol(4), pinoresinol(5),(-)-matairesinol(6), respectively. Among them, compound 1 was a new seco-prezizaane-type sesquiterpene lactone, and 2-6 were obtained from this plant for the first time.
View Article and Find Full Text PDFWorld J Clin Cases
October 2021
Background: Acute renal artery thrombosis is a relatively rare disease. Early diagnosis and emergent treatment can prevent the loss of renal function and the development of hypertension.
Case Summary: We report a patient with acute renal artery thrombosis who presented to our hospital with acute-onset right flank pain and was treated by percutaneous mechanical thrombectomy using the Rotarex device.
Thirteen compounds were isolated from the lipid-soluble extracts of Illicium ternstroemioides A. C. Smith, including eleven previously undescribed prenylated C-C compounds, a previously undescribed prenylated C-C derivative-abscisic acid ester hybrid, and a known compound (4S)-illicinone I.
View Article and Find Full Text PDFIllihenin A (), a novel sesquiterpenoid, was isolated from the roots of . The structure was determined by spectroscopic analyses, ECD calculation, and single-crystal X-ray diffraction. Compound represents a class of novel 5/7/6 tricyclic sesquiterpenoids featuring a rare cage-like tricyclo[6.
View Article and Find Full Text PDFBiomed Res Int
February 2021
Oxidative damage is closely involved in the development of doxorubicin- (DOX-) induced cardiotoxicity. It has been reported that tetrandrine can prevent the development of cardiac hypertrophy by suppressing reactive oxygen species- (ROS-) dependent signaling pathways in mice. However, whether tetrandrine could attenuate DOX-related cardiotoxicity remains unclear.
View Article and Find Full Text PDFNumerical approximation is a vital method to investigate the properties of stochastic age-dependent population systems, since most stochastic age-dependent population systems cannot be solved explicitly. In this paper, a Taylor approximation scheme for a class of age-dependent stochastic delay population equations with mean-reverting Ornstein-Uhlenbeck (OU) process and Poisson jumps is presented. In case that the coefficients of drift and diffusion are Taylor approximations, we prove that the numerical solutions converge to the exact solutions for these equations.
View Article and Find Full Text PDFTen undescribed highly oxidized sesquiterpenes and six known sesquiterpenes were isolated from HO-soluble part of the fruits of Illicium lanceolatum A. C. Smith.
View Article and Find Full Text PDFPostepy Dermatol Alergol
December 2019
MicroRNAs (miRNAs) are a type of small, non-coding RNAs that participate in many cellular and biological processes by regulating mRNA stability. In a previous study, we identified 96 Japanese flounder (Paralichthys olivaceus) miRNAs responsive to the infection of Edwardsiella tarda, a bacterial pathogen to fish as well as humans. In the current study, we examined the regulation and function of one novel miRNA, i.
View Article and Find Full Text PDFTen seco-prezizaane sesquiterpenes were isolated from the water-soluble fraction of the fruit of Illicium lanceolatum using the combined methods of silica gel column chromatography,Sephadex LH-20 column chromatography,and RP-preparative HPLC. They were elucidated as majusanol E( 1),2α-hydroxycycloparviflorolide( 2),2β-hydroxy-3,6-dedioxypseudoanisatin( 3),majusanol A( 4),merrillianone( 5),cycloparvifloralone( 6),3α-hydroxycycloparvifloralone( 7),1,2-dehydrocycloparvifloralone( 8),henrylactone C( 9),and( 11) 7,14-ortholactone-3α-hydroxyfloridanolide( 10) according to the NMR data. All compounds were obtained from this plant for the first time.
View Article and Find Full Text PDFGRAS transcription factors play important roles in the regulation of plant root growth and GA signaling. In this study,SmGRAS3 gene was cloned,which open reading frame was 2 247 bp,and encoding 748 amino acids. The physicochemical properties and structure of SmGRAS3 and its encoded protein were analyzed by bioinformatics software.
View Article and Find Full Text PDFJapanese flounder (Paralichthys olivaceus) is an important economic fish species farmed in China and other countries. It is susceptible to infection by Edwardsiella tarda, a severe fish pathogen with a broad host range. In this study, we employed high-throughput deep sequencing technology to identify, in a global scale, flounder kidney microRNAs (miRNAs) induced by E.
View Article and Find Full Text PDFFive new compounds (1-5), including three hexalactone derivatives (1-3) and a pair of new oxaspiro-carbon epimeric glycosides (4 and 5), and six known compounds (6-11) were obtained from the fruits of Illicium lanceolatum. The structures of the new compounds were elucidated using extensive spectroscopic data. The absolute configurations of compounds 1-3 were determined by an analysis of their CD spectra.
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